How-To Guides

In this section you will find guides for how to use LangSmith tracing functionality

Core Functionality

• How to log traces
• How to view traces
• How to select a sampling rate for traces
• How to turn off tracing
• How to get the URL of run
• How to delete traces

Customize Trace Attributes

• How to log to a specific project
• How to change the destination project at runtime
• How to add metadata and tags to traces
• How to customize the run name
• How to update a run
• How to mask inputs and outputs

LangChain Specific Guides

• How to group runs from multi-turn interactions
• How to get a run ID from a LangChain call
• How to trace without environment variables
• How to ensure all traces are submitted before executing

Querying Traces

• How to use keyword arguments
• How to filter runs

Collecting Feedback

• How to log feedback
• How to annotate traces